Power and Energy
ft·lbftocal
Convert foot-pounds force (ft·lbf) to thermochemical calories (cal).
Factor1 ft·lbf = 0.3240483 cal
Converter
ft·lbf
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cal
Rendered to 6 significant figures.
Formula
Formula
cal = ft·lbf × 0.3240483
Multiply any value in foot-pounds force by 0.3240483 to obtain the value in thermochemical calories.
Worked example
Convert 100 ft·lbf to cal.
- 01Start with 100 ft·lbf.
- 02Multiply by the conversion factor: 100 × 0.3240483 = 32.4048 cal.
Result100 ft·lbf = 32.4048 cal
Conversion table
| ft·lbf | cal |
|---|---|
| 1 | 0.32405 |
| 2 | 0.6481 |
| 5 | 1.6202 |
| 10 | 3.2405 |
| 20 | 6.481 |
| 50 | 16.202 |
| 100 | 32.405 |
| 200 | 64.81 |
| 500 | 162.02 |
| 1000 | 324.05 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft·lbf to cal?
1 ft·lbf equals 0.3240483 cal. To convert, multiply the value in foot-pounds force by 0.3240483.
How do I convert 1 ft·lbf to cal?
1 ft·lbf = 0.324048 cal. For any value, multiply by 0.3240483.
How do I convert cal back to ft·lbf?
Divide by the same factor — or equivalently, multiply by 3.08596. So 1 cal = 3.08596 ft·lbf.
When would I need to convert foot-pound force to thermochemical calorie?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).